Entity Framework 4.1中缺少DeleteObject方法 [英] DeleteObject method is missing in Entity Framework 4.1

问题描述

这让我疯狂。我收到的错误是，

对象不包含DeleteObject的定义。

这是我的代码行产生一个错误：

  ctx.Tanks.DeleteObject坦克）; 
 

我尝试引用另一个对象从 edmx 文件，我的朋友创建，然后一切都很好， DeleteObject 存在。我不认为我错过任何参考在我的项目。

和项目本身包含edmx文件，我使用 DBContext

解决方案

code> DbContext API定义 DbSet 不是 ObjectSet 。 DbSet 有一个删除 code>方法不 DeleteObject 方法。您需要首先决定要使用哪个API。如果 ObjectContext 或 DbContext 。

This is driving me crazy. I am getting error that

object doesn't contain definition for DeleteObject.

Here is my line of code that produces an error:

ctx.Tanks.DeleteObject(Tank);

I tried to reference another object from another edmx file that my friend has created and then everything is fine, DeleteObject exists. I don't think I miss any references in my project.

And project itself contains edmx file and I used DBContext to create POCOs.

Any ideas?

解决方案

The DbContext API defines DbSets not ObjectSets. DbSet has a Remove method not DeleteObject method. You need to first decide which API you are going to use. If it the ObjectContext or DbContext.

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